Contentstack is a headless CMS that lets you create flexible content components and deliver them to any digital platform through CDN-backed Content Delivery APIs. With its power-packed features, you can reuse content across different digital properties (web, mobile, IoT, and so on), optimized for the digital endpoint.

Contentstack and Vercel integration works seamlessly. Through this integration, you can build websites using Contentstack and smoothly deploy them with Vercel. This enhances the performance and user experience by enabling rapid deployments of your hosted websites.

Connect your Contentstack project with the Vercel project instantly and enable easy deployment within the Contentstack interface.

1. Firstly, click the Add Integration button at the top of this page to install this integration. Then, follow the on-screen instructions to add the Contentstack integration to the Vercel project.
2. Now, navigate to your Vercel project’s settings page and take a look at the environment variables that connect your Contentstack project with Vercel, as shown below:

CONTENTSTACK_API_KEY=<YOUR_API_KEY>
CONTENTSTACK_DELIVERY_TOKEN=<YOUR_DELIVERY_TOKEN>
CONTENTSTACK_ENVIRONMENT=<YOUR_PUBLISHING_ENVIRONMENT>
CONTENTSTACK_REGION=us
For the EU region set it as eu 
For setting custom host add CONTENTSTACK_CUSTOM_HOST=(Optional)

Read detailed instructions about the environment variables by following Contentstack+Vercel integration documentation.